    async fn {{#vendorExtensions}}{{{x-operation-id}}}{{/vendorExtensions}}(
        &self,
{{#vendorExtensions}}
  {{#x-callback-params}}
        callback_{{.}}: String,
  {{/x-callback-params}}
{{/vendorExtensions}}
{{#allParams}}
        param_{{{paramName}}}: {{^required}}Option<{{/required}}{{#isArray}}&{{/isArray}}{{{dataType}}}{{^required}}>{{/required}},
{{/allParams}}
        context: &C) -> Result<{{{operationId}}}Response, ApiError>
    {
        let mut client_service = self.client_service.clone();
        let mut uri = format!(
{{#isCallbackRequest}}
            "{{vendorExtensions.x-path-format-string}}"
{{/isCallbackRequest}}
{{^isCallbackRequest}}
            "{}{{^servers}}{{{basePathWithoutHost}}}{{/servers}}{{#servers.0}}{{{url}}}{{/servers.0}}{{vendorExtensions.x-path-format-string}}",
            self.base_path
{{/isCallbackRequest}}
{{#pathParams}}
            ,{{{paramName}}}=utf8_percent_encode(&param_{{{paramName}}}.to_string(), ID_ENCODE_SET)
{{/pathParams}}
{{#vendorExtensions}}
  {{#x-callback-params}}
            ,{{.}}=callback_{{.}}
  {{/x-callback-params}}
{{/vendorExtensions}}
        );

        // Query parameters
        let query_string = {
            let mut query_string = form_urlencoded::Serializer::new("".to_owned());
{{#queryParams}}
  {{^required}}
            if let Some(param_{{{paramName}}}) = param_{{{paramName}}} {
  {{/required}}
                query_string.append_pair("{{{baseName}}}",
  {{#vendorExtensions}}
    {{#x-consumes-json}}
                    &match serde_json::to_string(&param_{{{paramName}}}) {
                        Ok(str) => str,
                        Err(e) => return Err(ApiError(format!("Unable to serialize {{{paramName}}} to string: {}", e))),
                    });
    {{/x-consumes-json}}
    {{^x-consumes-json}}
      {{#isArray}}
                    &param_{{{paramName}}}.iter().map(ToString::to_string).collect::<Vec<String>>().join(","));
      {{/isArray}}
      {{^isArray}}
                    &param_{{{paramName}}}{{^isString}}.to_string(){{/isString}});
      {{/isArray}}
    {{/x-consumes-json}}
  {{/vendorExtensions}}
  {{^required}}
            }
  {{/required}}
{{/queryParams}}
{{#authMethods}}
  {{#isApiKey}}
    {{#isKeyInQuery}}
            if let Some(AuthData::ApiKey(ref api_key)) = (context as &dyn Has<Option<AuthData>>).get().as_ref() {
                query_string.append_pair("{{keyParamName}}", api_key);
            }
    {{/isKeyInQuery}}
  {{/isApiKey}}
{{/authMethods}}
            query_string.finish()
        };
        if !query_string.is_empty() {
            uri += "?";
            uri += &query_string;
        }

        let uri = match Uri::from_str(&uri) {
            Ok(uri) => uri,
            Err(err) => return Err(ApiError(format!("Unable to build URI: {}", err))),
        };

        let mut request = match Request::builder()
            .method("{{{vendorExtensions.x-http-method}}}")
            .uri(uri)
            .body(Body::empty()) {
                Ok(req) => req,
                Err(e) => return Err(ApiError(format!("Unable to create request: {}", e)))
        };
{{>client-request-body-instance}}
        let header = HeaderValue::from_str(Has::<XSpanIdString>::get(context).0.as_str());
        request.headers_mut().insert(HeaderName::from_static("x-span-id"), match header {
            Ok(h) => h,
            Err(e) => return Err(ApiError(format!("Unable to create X-Span ID header value: {}", e)))
        });

{{#hasAuthMethods}}
        #[allow(clippy::collapsible_match)]
        if let Some(auth_data) = Has::<Option<AuthData>>::get(context).as_ref() {
            // Currently only authentication with Basic and Bearer are supported
            #[allow(clippy::single_match, clippy::match_single_binding)]
            match auth_data {
            {{#authMethods}}
                {{#isBasicBasic}}
                AuthData::Basic(basic_header) => {
                    let auth = swagger::auth::Header(basic_header.clone());
                    let header = match HeaderValue::from_str(&format!("{}", auth)) {
                        Ok(h) => h,
                        Err(e) => return Err(ApiError(format!("Unable to create Authorization header: {}", e)))
                    };
                    request.headers_mut().insert(
                        hyper::header::AUTHORIZATION,
                        header);
                },
                {{/isBasicBasic}}
                {{#isBasicBearer}}
                AuthData::Bearer(bearer_header) => {
                    let auth = swagger::auth::Header(bearer_header.clone());
                    let header = match HeaderValue::from_str(&format!("{}", auth)) {
                        Ok(h) => h,
                        Err(e) => return Err(ApiError(format!("Unable to create Authorization header: {}", e)))
                    };
                    request.headers_mut().insert(
                        hyper::header::AUTHORIZATION,
                        header);
                },
                {{/isBasicBearer}}
                {{#isOAuth}}
                {{^isBasicBearer}}
                AuthData::Bearer(bearer_header) => {
                    let auth = swagger::auth::Header(bearer_header.clone());
                    let header = match HeaderValue::from_str(&format!("{}", auth)) {
                        Ok(h) => h,
                        Err(e) => return Err(ApiError(format!("Unable to create Authorization header: {}", e)))
                    };
                    request.headers_mut().insert(
                        hyper::header::AUTHORIZATION,
                        header);
                },
                {{/isBasicBearer}}
                {{/isOAuth}}
            {{/authMethods}}
                _ => {}
            }
        }

{{/hasAuthMethods}}
{{#headerParams}}
{{#-first}}
        // Header parameters
{{/-first}}
{{^isMap}}
{{^required}}
        #[allow(clippy::single_match)]
        match param_{{{paramName}}} {
            Some(param_{{{paramName}}}) => {
{{/required}}
        request.headers_mut().append(
            HeaderName::from_static("{{{nameInLowerCase}}}"),
            #[allow(clippy::redundant_clone)]
            match header::IntoHeaderValue(param_{{{paramName}}}.clone()).try_into() {
                Ok(header) => header,
                Err(e) => {
                    return Err(ApiError(format!(
                        "Invalid header {{{paramName}}} - {}", e)));
                },
            });
{{^required}}
            },
            None => {}
        }
{{/required}}
{{/isMap}}
{{#isMap}}
        let param_{{{paramName}}}: Option<{{{dataType}}}> = None;
{{/isMap}}

{{/headerParams}}
        let response = client_service.call((request, context.clone()))
            .map_err(|e| ApiError(format!("No response received: {}", e))).await?;

        match response.status().as_u16() {
{{#responses}}
            {{{code}}} => {
{{#headers}}
                let response_{{{name}}} = match response.headers().get(HeaderName::from_static("{{{nameInLowerCase}}}")) {
                    Some(response_{{{name}}}) => {
                        let response_{{{name}}} = response_{{{name}}}.clone();
                        let response_{{{name}}} = match TryInto::<header::IntoHeaderValue<{{{dataType}}}>>::try_into(response_{{{name}}}) {
                            Ok(value) => value,
                            Err(e) => {
                                return Err(ApiError(format!("Invalid response header {{baseName}} for response {{code}} - {}", e)));
                            },
                        };
  {{#required}}
                        response_{{{name}}}.0
  {{/required}}
  {{^required}}
                        Some(response_{{{name}}}.0)
  {{/required}}
                        },
  {{#required}}
                    None => return Err(ApiError(String::from("Required response header {{{baseName}}} for response {{{code}}} was not found."))),
  {{/required}}
  {{^required}}
                    None => None,
  {{/required}}
                };

{{/headers}}
{{#dataType}}
                let body = response.into_body();
                let body = body
                        .into_raw()
                        .map_err(|e| ApiError(format!("Failed to read response: {}", e))).await?;

{{>client-response-body-instance}}

                Ok({{{operationId}}}Response::{{#vendorExtensions}}{{x-response-id}}{{/vendorExtensions}}
{{^headers}}
                    (body)
{{/headers}}
{{#headers}}
  {{#-first}}
                    {
                        body,
  {{/-first}}
                        {{{name}}}: response_{{name}},
  {{#-last}}
                    }
  {{/-last}}
{{/headers}}
                )
{{/dataType}}
{{^dataType}}
                Ok(
                    {{{operationId}}}Response::{{#vendorExtensions}}{{x-response-id}}{{/vendorExtensions}}
{{#headers}}
  {{#-first}}
                    {
  {{/-first}}
                        {{{name}}}: response_{{name}},
  {{#-last}}
                    }
  {{/-last}}
{{/headers}}
                )
{{/dataType}}
            }
{{/responses}}
            code => {
                let headers = response.headers().clone();
                let body = response.into_body()
                       .take(100)
                       .into_raw().await;
                Err(ApiError(format!("Unexpected response code {}:\n{:?}\n\n{}",
                    code,
                    headers,
                    match body {
                        Ok(body) => match String::from_utf8(body) {
                            Ok(body) => body,
                            Err(e) => format!("<Body was not UTF8: {:?}>", e),
                        },
                        Err(e) => format!("<Failed to read body: {}>", e),
                    }
                )))
            }
        }
    }
